Flow C++ SDK

Flow C++ SDK For Flow Hackathon

Steps to compile and build the FlowClient

1. Ensure that the required libraries are present and installed.

   gcc==9.3.0
   g++==9.3.0
   cmake==3.16.3
   protobuf==3.15.8
   grpc==1.40.0
   OpenSSL 1.1.1l
   

2. Set environment variables in ~/.bashrc. Ensure that this is the same directory used during the installation of grpc.

   export MY_INSTALL_DIR=$HOME/.local
   export PATH="$MY_INSTALL_DIR/bin:$PATH"
   

3. Copy the absl directory to the install directory.

   cd grpc
   sudo cp -r third_party/abseil-cpp/absl $HOME/.local/include
   

4. Clone the project.

   git clone https://github.com/QMrpy/flow-cpp-sdk.git
   

5. Build the Flow C++ client. Use make if make -j fails due to out of memory error.

   cd flow-cpp-sdk
   mkdir -p cmake/build
   pushd cmake/build
   cmake -DCMAKE_PREFIX_PATH=$MY_INSTALL_DIR ../..
   make -j
   popd
   

   The above steps lead to a successful build on Ubuntu WSL2 and Mac OSX Big Sur 11.5. The executable main will be created in the cmake/build directory.

Steps to run the FlowClient

1. Start the flow emulator from a terminal, from a directory where a configuration file flow.json is present.

   flow emulator
   

2. From another terminal, run the binary main, using the URL of the host Flow network.

   ./main <host>[flow-emulator|flow-mainnet|flow-testnet]